The money is in the list, but if you don't know how to build your list for free, then that list can cost you a lot of money! Before I learned how to start building my opt-in lists for free, I was paying about $2.50 for each one of my double opt-in leads. Depending on your list, this may not be a large price to pay, but for every 1,000 people, that was costing me $2,500 for every 1,000 people...
